Security-Enhanced Linux secures the pegasus processes via flexible mandatory access control.
The pegasus processes execute with the pegasus_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.
For example:
ps -eZ | grep pegasus_t
The pegasus_t SELinux type can be entered via the pegasus_exec_t file type.
The default entrypoint paths for the pegasus_t domain are the following:
/usr/sbin/cimserver, /usr/sbin/init_repository
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux pegasus policy is very flexible allowing users to setup their pegasus processes in as secure a method as possible.
The following process types are defined for pegasus:
pegasus_t, pegasus_openlmi_admin_t, pegasus_openlmi_account_t, pegasus_openlmi_logicalfile_t, pegasus_openlmi_services_t, pegasus_openlmi_storage_t, pegasus_openlmi_system_t, pegasus_openlmi_unconfined_t
Note: semanage permissive -a pegasus_t can be used to make the process type pegasus_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the authlogin_nsswitch_use_ldap boolean. Disabled by default.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default.
setsebool -P kerberos_enabled 1
If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.
setsebool -P nis_enabled 1
If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Enabled by default.
setsebool -P nscd_use_shm 1
You can see the types associated with a port by using the following command:
semanage port -l
Policy governs the access confined processes have to these ports. SELinux pegasus policy is very flexible allowing users to setup their pegasus processes in as secure a method as possible.
The following port types are defined for pegasus:
Default Defined Ports: tcp 5988
Default Defined Ports: tcp 5989
The SELinux process type pegasus_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.
cluster_conf_t
/etc/cluster(/.*)?
cluster_var_lib_t
/var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?
cluster_var_run_t
/var/run/crm(/.*)?
/var/run/cman_.*
/var/run/rsctmp(/.*)?
/var/run/aisexec.*
/var/run/heartbeat(/.*)?
/var/run/corosync-qnetd(/.*)?
/var/run/corosync-qdevice(/.*)?
/var/run/corosync.pid
/var/run/cpglockd.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk
faillog_t
/var/log/btmp.*
/var/log/faillog.*
/var/log/tallylog.*
/var/run/faillock(/.*)?
initrc_var_run_t
/var/run/utmp
/var/run/random-seed
/var/run/runlevel.dir
/var/run/setmixer_flag
krb5_host_rcache_t
/var/cache/krb5rcache(/.*)?
/var/tmp/nfs_0
/var/tmp/DNS_25
/var/tmp/host_0
/var/tmp/imap_0
/var/tmp/HTTP_23
/var/tmp/HTTP_48
/var/tmp/ldap_55
/var/tmp/ldap_487
/var/tmp/ldapmap1_0
krb5_keytab_t
/etc/krb5.keytab
/etc/krb5kdc/kadm5.keytab
/var/kerberos/krb5kdc/kadm5.keytab
pegasus_cache_t
pegasus_data_t
/var/lib/Pegasus(/.*)?
/etc/Pegasus/pegasus_current.conf
/etc/Pegasus/cimserver_current.conf
pegasus_tmp_t
pegasus_var_run_t
/var/run/tog-pegasus(/.*)?
root_t
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
samba_etc_t
/etc/samba(/.*)?
sysfs_t
/sys(/.*)?
virt_etc_rw_t
/etc/xen/[^/]*
/etc/xen/.*/.*
/etc/libvirt/[^/]*
/etc/libvirt/.*/.*
virt_etc_t
/etc/xen/[^/]*
/etc/libvirt/[^/]*
/etc/xen
/etc/libvirt
You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux pegasus policy is very flexible allowing users to setup their pegasus processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the pegasus, if you wanted to store files with these types in a diffent paths, you need to execute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.
semanage fcontext -a -t pegasus_openlmi_storage_var_run_t '/srv/mypegasus_content(/.*)?'
restorecon -R -v /srv/mypegasus_content
Note: SELinux often uses regular expressions to specify labels that match multiple files.
The following file types are defined for pegasus:
pegasus_cache_t
- Set files with the pegasus_cache_t type, if you want to store the files under the /var/cache directory.
pegasus_conf_t
- Set files with the pegasus_conf_t type, if you want to treat the files as pegasus configuration data, usually stored under the /etc directory.
pegasus_data_t
- Set files with the pegasus_data_t type, if you want to treat the files as pegasus content.
pegasus_exec_t
- Set files with the pegasus_exec_t type, if you want to transition an executable to the pegasus_t domain.
pegasus_mof_t
- Set files with the pegasus_mof_t type, if you want to treat the files as pegasus mof data.
pegasus_openlmi_account_exec_t
- Set files with the pegasus_openlmi_account_exec_t type, if you want to transition an executable to the pegasus_openlmi_account_t domain.
pegasus_openlmi_admin_exec_t
- Set files with the pegasus_openlmi_admin_exec_t type, if you want to transition an executable to the pegasus_openlmi_admin_t domain.
pegasus_openlmi_logicalfile_exec_t
- Set files with the pegasus_openlmi_logicalfile_exec_t type, if you want to transition an executable to the pegasus_openlmi_logicalfile_t domain.
pegasus_openlmi_services_exec_t
- Set files with the pegasus_openlmi_services_exec_t type, if you want to transition an executable to the pegasus_openlmi_services_t domain.
pegasus_openlmi_storage_exec_t
- Set files with the pegasus_openlmi_storage_exec_t type, if you want to transition an executable to the pegasus_openlmi_storage_t domain.
pegasus_openlmi_storage_lib_t
- Set files with the pegasus_openlmi_storage_lib_t type, if you want to treat the files as pegasus openlmi storage lib data.
pegasus_openlmi_storage_tmp_t
- Set files with the pegasus_openlmi_storage_tmp_t type, if you want to store pegasus openlmi storage temporary files in the /tmp directories.
pegasus_openlmi_storage_var_run_t
- Set files with the pegasus_openlmi_storage_var_run_t type, if you want to store the pegasus openlmi storage files under the /run or /var/run directory.
pegasus_openlmi_system_exec_t
- Set files with the pegasus_openlmi_system_exec_t type, if you want to transition an executable to the pegasus_openlmi_system_t domain.
pegasus_openlmi_unconfined_exec_t
- Set files with the pegasus_openlmi_unconfined_exec_t type, if you want to transition an executable to the pegasus_openlmi_unconfined_t domain.
pegasus_tmp_t
- Set files with the pegasus_tmp_t type, if you want to store pegasus temporary files in the /tmp directories.
pegasus_var_run_t
- Set files with the pegasus_var_run_t type, if you want to store the pegasus files under the /run or /var/run directory.
Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.
semanage permissive can also be used to manipulate whether or not a process type is permissive.
semanage module can also be used to enable/disable/install/remove policy modules.
semanage port can also be used to manipulate the port definitions
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux policy settings.